Rack hoisting jack: Uses the rack to go against as the rigidity lifts a hoisting jack.
齿条千斤顶：采用齿条作为刚性顶举件的千斤顶。
Introduced USES the ANSYS software establishment hydraulic power support hoisting jack the method.
介绍了利用A NSYS软件建立液压支架千斤顶的模型方法。
Hydraulic jack: Uses the plunger or the hydraulic cylinder goes against as the rigidity lifts a hoisting jack.
油压千斤顶：采用柱塞或液压缸作为刚性顶举件的千斤顶。
Passes the hoisting jack to use the portal frame construction, reduces pushes slides the strength and increases moves a strength.
推移千斤顶采用框架结构，以减少推溜力和增大移架力。
Screw jack: Uses the screw rod or the fluctuation sleeve which impels by the screw rod goes against as the rigidity lifts a hoisting jack.
螺旋千斤顶：采用螺杆或由螺杆推动的升降套筒作为刚性顶举件的千斤顶。
Relaxes the brake, the heavy item then voluntarily fast drops, reduces the return trip time, but this kind of hoisting jack structure is complex.
放松制动器，重物即可自行快速下降，缩短返程时间，但这种千斤顶构造较复杂。
In the 18th century, London presented the hydraulic pressure printer, likes the Feir iron tower adjusting using the hydraulic pressure hoisting jack.
在18世纪，伦敦就出现了液压印刷机，爱菲尔铁塔利用水压千斤顶来调节。
The new hydraulic hoisting jack is a construction equipment with our own knowledge property, which is used to install large-sized electrical equipment.
新型液压起重器是具有我国自主知识产权的安装大型电力设备的施工设备。
When vertical column is lifted, the roof beam is closely near top plate, the integrated mining equipment can be lifted or laid down by the hoisting jack.
当立柱升起后顶梁贴紧顶板，提升千斤就能提起或放下综采设备。
This paper expounds the design of processing techniques before hole-boring on the cylinder of upright post and hoisting jack used in the hydraulic support.
阐述了液压支架所用立柱、千斤顶的缸筒在上深孔钻镗床进行镗孔、滚压之前必须进行的加工工艺的设计。
Traditional method for overhaul of the top of miter gate is through manual operation by hydraulic hoisting jack which has the shortcomings of low efficiency and great risk.
摘要船闸人字门顶门检修的传统方法是采用液压千斤顶手动作业，工作效率低，时间长，技术风险大。
The hoisting jack calls the mechanical hoisting jack, is by the manpower through the screw vice-transmission, the screw rod or the nut sleeve achievement goes against lifts.
液压千斤顶又称机械式千斤顶，是由人力通过螺旋副传动，螺杆或螺母套筒作为顶举件。
A hoisting jack is a key component for a rocket launcher vehicle, influencing the combat performance. It is required to support the combat vehicle reliably within the prescribed time.
火箭炮车千斤顶是一个影响战术技术性能的关键件，要求它在规定的时间内可靠地支撑起炮车。
The hoisting airbag is a new type of pneumatic jack and used in special hoisting territory.
起重气袋是一种新型气动千斤顶，用于特殊起重领域。
Jack was a stout fellow, and after considerable trouble he succeeded in hoisting the donkey to his shoulders and started for home.
杰克是个壮实的家伙，在经过你想像得到的麻烦之后，成功地把毛驴扛在肩上，向家中走去。
Jack was a stout fellow, and after considerable trouble he succeeded in hoisting the donkey to his shoulders and started for home.
杰克是个壮实的家伙，在经过你想像得到的麻烦之后，成功地把毛驴扛在肩上，向家中走去。
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